thanks. right now I'm mapping so there won't be updates for a while... also I have to figure out a more efficient way to switch between maps code-wise and also how to deal with nested popups... like items in houses.

Nimbilow is the evolved form of Jurker, and evolves on Lv. 22. However, you only get Nimbillow in Solar, while you get Stritus in Lunar. Nimbillow can't be obtained because only Lunar version is out right now; it will be split into two versions when the game is done. Besides that, Nimbillow is fully programmed in the game; you even get to battle a trainer who uses one.
As for Oculet, it is the evolved form of Vatick. Vatick evolves into Oculet on Lv. 18. Oculet cannot be caught in the wild, which is why the guide says to evolve Vatick. When Oculet reaches Lv. 36, it evolves into Voyant.

Slatter's moves seem to be absent. If it helps, It seems to start with Leech Life and Infection (Or it at least has them by the time you catch it.) and it learns Extract Life at level 13. It also learns Faint attack somewhere between there and level 19.
UPDATE: It learns Acid at level 22

Nimbilow is the evolved form of Jurker, and evolves on Lv. 22. However, you only get Nimbillow in Solar, while you get Stritus in Lunar. Nimbillow can't be obtained because only Lunar version is out right now; it will be split into two versions when the game is done. Besides that, Nimbillow is fully programmed in the game; you even get to battle a trainer who uses one.
As for Oculet, it is the evolved form of Vatick. Vatick evolves into Oculet on Lv. 18. Oculet cannot be caught in the wild, which is why the guide says to evolve Vatick. When Oculet reaches Lv. 36, it evolves into Voyant.

Okay thanks... I guess I was reading it "differently" and got confused. I understand now though :-D

Slatter's moves seem to be absent. If it helps, It seems to start with Leech Life and Infection (Or it at least has them by the time you catch it.) and it learns Extract Life at level 13. It also learns Faint attack somewhere between there and level 19.

Yeah, the movesest aren't complete and some of the pokemon who were caught about an hour or two into the game were accidentally deleted.

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This is what I have for Slatter right now:
Slatter learns Extract Life on Lv. 12.
Slatter learns Faint Attack on Lv. 16.
Slatter learns Acid on Lv. 22.
My Slatter is on Lv. 31 right now, and I will train it to Lv. 40. If it learns any additional moves, I'll post them.